Heat-radiator for stove-pipes



N. F. -GOODRICH.

Heat Radiator for Stovepipes. No. 50,069. Patented Sept. 19, 1865.

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" UNITED STATES PATENT OFFICE.

N. F. GOODRICH, OF MERIDEN, CONNECTICUT, ASSIGNOR TO HIMSELF AND ISAACL. HOLMES, OF HAYDENVILLE, MASSACHUSETTS.

HEAT-RADIATOR FOR STOVE-PIPES.

Specification forming part of Letters Patent No. 50,069, dated September19, 1865.

To all whom it may concern Be it known that I, N. F. GOODRIOH, ofMeriden, in the county of New Haven and State of Connecticut, haveinvented a new and ImprovedHeat-Radiator for Stove-Pipes; and I dohereby declare that the following is afull, clear, and exact descriptionthereof, which will enable others skilled in the art to make and use thesame, reference being had to the accompanying drawings, forming part ofthis specification, in which- Figure 1 is a vertical or longitudinalsection of my invention, taken in the line a: w, Fig.2; Fig. 2, atransverse section of the same, taken in the line y y, Fig.

Similar letters of reference indicate like parts.

Thisinvention relates to a new and useful improvement in a heat-radiatorfor stove-pipes, for which Letters Patent were granted to I. L. Holmes,August 30, 1864.

The radiator of Holmes consists of two conical chambers connected by aseries of pipes, forming in the aggregate quite a large heatradiatingsurface. This radiator answers a good purpose, but it has one defect, towit, no means by which a direct draft may be obtained when required-as,for instance, in kindling a fire, and at times when, owing, to thedirection of the wind and from other causes, the draft is sluggish andinsufficient to insure a rapid combustion of the fuel within the stove.

My invention is designed to obviate this difficulty; and to this end itconsists in providing the radiator with a central pipe of largerdiameter than those surrounding it, and providing said central pipe witha damper, all being arranged as hereinafter set forth, whereby a di rectdraft may be obtained through the central pipe whenever required, and anindirect draft through the smaller pipes when the radiation of heat fromthe device is required.

A A represent two chambers ofconical form, communicating with each otherby means of pipes B, placed in the form of a circle between A A, asshown in Fig. 2. The two chambers A A are connected by a pipe, C, whichconnects with the centers of the larger ends of A A, the pipes B, whichare considerably smaller than C, surrounding it. The pipe C is providedwith a damper, D, and a damper, E, is placed within one of the chambersA.

The device is connected with the stove-pipe by having its joints fittedon the smaller ends of the chambers A A; and itwill be seen from theabove description that when the damper D is closed the products ofcombustion willpass up through the small pipes B, as indicated by thearrows l, and a large heat-radiating surface obtained. This, however, israther an indirect draft, and in cases where the combustion of the fuelin the stove will be too much checked, or when a strong draft isrequired-as in kindlinga tire, forinstance, the damperD of pipe C isopened, and the products of-combustion will pass up directly through C,as indicated by arrow 2. Thus, by this very simple arrangement, thepatented device of' Holmes,previously alluded to, is made perfect.

I claim as new and desire to secure by Letters Patent- 1 The centralpipe, C, provided with a damper, D, in combination with the pipes B andchambers A A, all arranged substantially as and for the purposespecified.

N. F. GOODRICH.

Witnesses:

JOHN lVEs, LEVI E. 00E.

